File:The century supplement to the dictionary of gardening, a practical and scientific encyclopaedia of horticulture for gardeners and botanists (1901) (14591615068).jpg

Identifier: centurysupplemen1901nich (find matches)
Title: The century supplement to the dictionary of gardening, a practical and scientific encyclopaedia of horticulture for gardeners and botanists
Year: 1901 (1900s)
Authors: Nicholson, George, 1847-1908
Subjects: Gardening Horticulture Plants, Ornamental
Publisher: Hyde Park, Mass. : Geo. T. King London : L. Upcott Gill
Contributing Library: The LuEsther T Mertz Library, the New York Botanical Garden
Digitizing Sponsor: The LuEsther T Mertz Library, the New York Botanical Garden

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k ;but they are equally objectionable in the orchard and onthe farm. As Beetles they teed npon the foliage of nearlyall onr decidnons shade-trees, as well as npon various fruittrees ; while as grubs they are notoriously destructive tograss roots, com roots, the commoner field crops grown fortheir roots, nursery beds containing seedlings, and evenupon Strawberry-roots. On the Continent, more particu-larly in France and Germany, the Fir plantations suffer fromtheir ravages, and, with all the insecticides available, manis largely dependent upon the birds and the bats for pre-serving the requisite balance, especially in the case of grassland. In addition to the methods for their destruction recordedin Vol. I., gardeners and farmers should try beating thetrees in infested districts over tarred boai-ds. This is bestdone early in the day, when the peats may be found on theunder-surfaces of the foliage. They are readily dislodgedand should be collected and destroyed. COCKLE BUR. See Xanthium.
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Fig. 266. Periplaneta Americana. 1, Imago (wings expanded)2, Imago (wings closed); 3, Immature ; 4, Ootheca (egg-case). COCKROACHES are Orthopterous insects, doing muchdamage to fruits under glass, choice flowers (like Orchids),the fronds of Ferns, and many other plants. In vineriesthey are exceedingly troublesome at times, feeding upon 1900 Supplement—Recent Introductions, &g. 249 Cockroaches—continued.the shoots, stems, and footstalks. Twenty years ago theonly species that could be characterised as a pest was theCommon Cockroach, Stylophaga (^Periplaneta) orientalis^which holds its midnight revels in kitchens. More recently,owing to an interchange of commei-ce, several other specieshave established themselves in goodly numbers, the heatedstructures found in gardens generally affording them thenecessary warmth. At Kew and many other places whereplants are constantly being received from abroad, numbersare taken. In the Palm House and in the forcing-pits atKew, P. a-u^tralasise

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